Custom_Exception.java

import java.util.Scanner;

@SuppressWarnings("serial")
class AgeException extends Exception {
    public AgeException(String message) {
        super(message);
    }
}

public class Custom_Exception {
    public static void validateAge(int age) throws AgeException {
        if (age < 18) {
            throw new AgeException("Age must be at least 18 years old.");
        }
        System.out.println("Age is valid: " + age);
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Eligibility Test for Election Voting");
        System.out.print("Enter your age: ");
        int age = scanner.nextInt();

        try {
            validateAge(age);
        } catch (AgeException e) {
            System.out.println("Error: " + e.getMessage());
        } finally {
            System.out.println("I am finally block ...I am always here...");
            scanner.close();
        }
    }
}